GM Service Manual Online
For 1990-2009 cars only

Fuel Tank Draining Front Tank


    Object Number: 853738  Size: SH

    Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
  3. Use a hand or air operated pump device in order to drain as much fuel from the rear fuel tank through the fuel fill pipe as possible.
  4. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Loosen the front tank fuel hose clamp.
  6. Separate the fuel hose from the front fuel tank.
  7. Use a hand or air operated pump device in order to drain as much fuel from the front fuel tank through the fuel tank opening as possible.

Fuel Tank Draining Rear Tank

  1. Disconnect negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the fuel fill cap.
  3. Use a hand or air operated pump device in order to drain as much fuel through the fuel fill pipe as possible.